To be and stay in a completely neutral state of mind, would to me indicate to refrain from any emotion. Nothing that is said or done can 'touch' you. You can then clearly respond in a manner you see fit.
But emotion is a big part of being human. Obvious solution is to (learn to) control your emotions, that much is clear. ALso the hardest part, I guess.
What is your view on this?

In a real fight:
* If you make a bad decision, you die.
* If you don't decide anything, you die.
Aikido teaches you how to decide.www.aikido-makato.nl